Describe the Graph Using Another Equation $y=\cos \left(x+\frac{\pi}{2}\right)-\cos \left(x-\frac{\pi}{2}\right)$ A) $- 2 \sin x$

question 47

Multiple Choice

Describe the graph using another equation.
- $y=\cos \left(x+\frac{\pi}{2}\right) -\cos \left(x-\frac{\pi}{2}\right)$

• A) \(- 2 \sin x\)
• B) \(- 2 \cos x\)
• C) \(- \sin x\)
• D) \(- \cos x\)

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